CN113820838A - Image capturing device and electronic device - Google Patents

Abstract

The invention provides an image capturing device and an electronic device, wherein the image capturing device comprises an optical lens group for shooting and an electronic photosensitive element; the optical lens group for shooting comprises a plurality of lenses, wherein the plurality of lenses sequentially comprise a first lens, a second lens and a last lens from an object side to an image side; each lens in the plurality of lenses comprises an object side surface facing an object side direction and an image side surface facing an image side direction, the electronic photosensitive element is arranged at the image side of the last lens, at least one lens in the plurality of lenses is plastic, and at least one lens comprises at least one inflection point; the multi-lens comprises at least one variable lens interval, wherein the variable lens interval is the variable optical axis distance between two adjacent lenses in the multi-lens. When specific conditions are met, good central and peripheral image quality can be achieved to meet market requirements.

Description

Image capturing device and electronic device

Technical Field

The present invention relates to an optical lens assembly for image capture and an image capturing device, and more particularly, to an optical lens assembly for image capture and an image capturing device applicable to an electronic device.

Background

With the advance of semiconductor technology, the performance of the electronic photosensitive device is improved, and besides the single pixel can reach a smaller size, the size of the electronic photosensitive device is increased, so that the optical lens with high imaging quality becomes an indispensable ring.

With the increasing development of science and technology, electronic devices equipped with optical lenses have a wider application range and more diversified requirements for optical lenses, and the conventional optical lenses are not easy to satisfy the shooting requirements of close-up shooting and far-up shooting at the same time, and the sensitivity, aperture size, volume or visual angle are not easy to balance, so that the invention provides an optical lens, which can achieve good central image quality and peripheral image quality under different shooting situations by changing the distance between the lens and an electronic photosensitive element and changing the distance between the lenses, thereby meeting the market requirements.

Disclosure of Invention

The invention provides an image capturing device, which comprises an optical lens group for shooting and an electronic photosensitive element; the image pickup optical lens group comprises a plurality of lenses, wherein the plurality of lenses sequentially comprise a first lens, a second lens and a last lens from an object side to an image side, the plurality of lenses all comprise an object side surface facing the object side direction and an image side surface facing the image side direction, and the electronic photosensitive element is configured on the image side of the last lens. In the multi-lens, at least one lens is plastic, and at least one lens comprises at least one inflection point; the multi-lens comprises at least one variable lens interval, wherein the variable lens interval is the variable optical axis distance between two adjacent lenses in the multi-lens.

The image pickup optical lens group comprises an object distance between a shot object and the object side surface of the first lens element, and when the object distance is infinite, the distance between the lens surface closest to the object side and the optical axis of the electronic photosensitive element is TLinf; when the object distance is infinity, the focal length of the optical lens group for shooting is finf; the minimum one of the Abbe numbers of the lenses of the optical lens group for shooting is Vdmin; when the object distance is infinity, the optical axis distance of the at least one variable mirror distance is ATinf; when the object distance is 500mm, the optical axis distance of the at least one variable mirror distance is ATmacro; when the object distance is 500mm, the distance between the lens surface closest to the object side and the optical axis of the electronic photosensitive element is TLmacro; which satisfies the following relation:

0.60<TLinf/finf<2.50；

10.0< Vdmin < 28.0; and

0.05<|(ATinf-ATmacro)/(TLinf-TLmacro)|<0.80。

the invention also provides an image capturing device, which comprises an optical lens group for shooting, an electronic photosensitive element, a first driving device and a second driving device; the optical lens group for shooting comprises a plurality of lenses, wherein each lens comprises an object side surface facing to the object side direction and an image side surface facing to the image side direction; the multi-lens system comprises a lens, a first lens, a second lens and a last lens, wherein the lens comprises a lens body and a lens cover from an object side to an image side; in the multi-lens, at least one lens is plastic, and at least one lens comprises at least one inflection point; the second driving device can enable the multi-lens to comprise at least one variable lens spacing, and the variable lens spacing is an optical axis distance which can be changed between two adjacent lenses in the multi-lens.

The image pickup optical lens group comprises an object distance between a shot object and the object side surface of the first lens element, and when the object distance is infinite, the distance between the lens surface closest to the object side and the optical axis of the electronic photosensitive element is TLinf; when the object distance is infinity, the focal length of the optical lens group for shooting is finf; the minimum of the abbe numbers of the lenses of the optical lens group for shooting is Vdmin, which satisfies the following relational expression:

0.60< TLinf/finf < 2.50; and

10.0<Vdmin<21.0。

the invention provides an electronic device, comprising at least two image capturing devices, wherein the at least two image capturing devices are positioned at the same side of the electronic device, and each image capturing device comprises a first image capturing device and a second image capturing device; and a second image capturing device including an optical lens assembly and an electronic photosensitive element; the difference between the visual angle of the first image capturing device and the visual angle of the second image capturing device is at least 30 degrees.

When TLinf/finf meets the conditions, the total length of the system can be balanced and the size of the visual field can be controlled to meet the application requirements of the product.

When Vdmin meets the condition, the system light path can be regulated and controlled, and the convergence capacity among the light paths of different wave bands is balanced, so that the chromatic aberration is corrected.

When | (ATinf-ATmacro)/(TLinf-TLmacro) | satisfies the condition, it can be adjusted according to the different imaging qualities of the optical system for the center and the periphery of the image in the close-up shooting and the far-up shooting.

Drawings

Fig. 1A is a schematic view of an image capturing apparatus according to a first embodiment of the invention.

FIG. 1B is a diagram of an aberration curve according to the first embodiment of the present invention.

Fig. 2A is a schematic view of an image capturing apparatus according to a second embodiment of the present invention.

FIG. 2B is an aberration diagram of the second embodiment of the present invention.

Fig. 3A is a schematic view of an image capturing apparatus according to a third embodiment of the present invention.

FIG. 3B is a diagram of an aberration curve according to a third embodiment of the present invention.

Fig. 4A is a schematic view of an image capturing apparatus according to a fourth embodiment of the invention.

FIG. 4B is an aberration diagram according to a fourth embodiment of the present invention.

Fig. 5A is a schematic view of an image capturing apparatus according to a fifth embodiment of the present invention.

FIG. 5B is an aberration diagram of a fifth embodiment of the present invention.

Fig. 6A is a schematic view of an image capturing apparatus according to a sixth embodiment of the invention.

FIG. 6B is an aberration diagram according to the sixth embodiment of the present invention.

Fig. 7A is a schematic view of an image capturing apparatus according to a seventh embodiment of the invention.

FIG. 7B is an aberration diagram according to the seventh embodiment of the present invention.

Fig. 8A is a schematic view of an image capturing apparatus according to an eighth embodiment of the present invention.

FIG. 8B is an aberration diagram according to the eighth embodiment of the present invention.

Fig. 9A is a schematic view of an image capturing apparatus according to a ninth embodiment of the invention.

FIG. 9B is an aberration diagram of the ninth embodiment of the present invention.

FIG. 10A is a diagram illustrating the parameters ATinf, BLinf, and TLinf of the present invention when the object distance is infinity.

FIG. 10B is a diagram of the parameters ATmacro, BLmacro and TLmacro of the present invention when the object distance is 500 mm.

Fig. 11A is a schematic view of a first driving device and a second driving device of an image capturing apparatus according to the present invention.

Fig. 11B is a schematic view of another first driving device and a second driving device of the image capturing apparatus of the present invention.

FIG. 12A is a diagram illustrating the parameters AT1inf, AT2inf, BLinf, and TLinf according to the present invention when the object distance is infinity.

FIG. 12B is a diagram of the parameters AT1macro, AT2macro, BLmacro and TLmacro of the present invention when the object distance is 500 mm.

Fig. 13A is a schematic view of another first driving device and a second driving device of the image capturing apparatus of the present invention.

Fig. 13B is a schematic view of the first driving device, the second driving device and the third driving device of the image capturing apparatus of the present invention.

FIG. 14 is a perspective view of a tenth embodiment of the present invention

Fig. 15A is a front view of an electronic device according to an eleventh embodiment of the invention.

Fig. 15B is a rear view of an electronic device according to an eleventh embodiment of the invention.

Fig. 16A is a front view of an electronic device according to a twelfth embodiment of the invention.

Fig. 16B is a rear view of an electronic device according to a twelfth embodiment of the invention.

Reference numerals:

aperture 100, 200, 300, 400, 500, 600, 700, 800, 900

Diaphragms 301, 401, 701, 801

First diaphragms 501, 601, 801, 901

Second diaphragms 502, 602, 802, 902

First lens 110, 210, 310, 410, 510, 610, 710, 810, 910, 1010, 1210

Object sides 111, 211, 311, 411, 511, 611, 711, 811, 911, 1011, 1211

Like side surfaces 112, 212, 312, 412, 512, 612, 712, 812, 912

Second lens 120, 220, 320, 420, 520, 620, 720, 820, 920, 1220

Object side surfaces 121, 221, 321, 421, 521, 621, 721, 821, 921

Image side 122, 222, 322, 422, 522, 622, 722, 822, 922, 1222

Third lens 130, 230, 330, 430, 530, 630, 730, 830, 930, 1030, 1230

Object sides 131, 231, 331, 431, 531, 631, 731, 831, 931, 1231

Like side surfaces 132, 232, 332, 432, 532, 632, 732, 832, 932, 1032, 1232

Fourth lens 140, 240, 340, 440, 540, 640, 740, 840, 940, 1040, 1240

Object side 141, 241, 341, 441, 541, 641, 741, 841, 941, 1041, 1241

Image side 142, 242, 342, 442, 542, 642, 742, 842, 942, 1042, 1242

Fifth lens 150, 250, 350, 450, 550, 650, 750, 850, 950

Object side 151, 251, 351, 451, 551, 651, 751, 851, 951

Like side 152, 252, 352, 452, 552, 652, 752, 852, 952

Sixth lens 160, 260, 360, 460, 560, 660, 760, 860, 960

Object side surfaces 161, 261, 361, 461, 561, 661, 761, 861, 961

Like sides 162, 262, 362, 462, 562, 662, 762, 862, 962

Seventh lens 170, 270, 370, 470, 570, 670, 770, 870, 970

Object side surfaces 171, 271, 371, 471, 571, 671, 771, 871 and 971

Like side surfaces 172, 272, 372, 472, 572, 672, 772, 872, 972

Eighth lens 580, 680, 880, 980

Object side 581, 681, 881, 981

Image side 582, 682, 882, 982

Ninth lenses 890, 990

Object sides 891, 991

Like side 892, 992

Filter elements 180, 280, 380, 480, 593, 693, 780, 893, 993

Imaging planes 190, 290, 390, 490, 594, 694, 790, 894, 994, 1090, 1290

Electron sensitive elements 195, 295, 395, 495, 595, 695, 795, 895, 995, 1095, 1295

First driving device 1100, 1130, 1300, 1330

Second drive 1120, 1140, 1320, 1340

Third driving device 1350

Focal length f of imaging optical lens group

Focal length finf of optical lens group for image pickup at infinite object distance

Aperture value Fno of imaging optical lens group

Aperture value Fnoinf of optical lens group for image pickup at infinite object distance

Half of HFOV (high frequency video-over-video) V with maximum visual angle in optical lens group for camera shooting

Half of HFOV Vinf of maximum visual angle in optical lens group for shooting when object distance is infinite

Half of HFOV Vlacro of the maximum visual angle in the optical lens group for shooting when the object distance is 500mm

Image capturing devices 10a, 1520, 1530, 1540, 1550, 1604a, 1604b, 1605a, 1605b, 1606a, 1606b, 1609a, 1609b

Imaging optical lens group 11a

Drive device 12a

Electron-sensitive element 13a

Image stabilization module 14a

Electronic device 1500, 1600

Display devices 1510, 1610

TOF modules 1601, 1607

Flashlight module 1608

Vdmin which is the smallest of Abbe numbers of lenses of optical lens group for shooting

AT least one optical axis distance ATinf, AT1inf, AT2inf of variable lens spacing when the object distance is infinite

AT least one optical axis distance ATmacro, AT1macro, AT2macro of variable lens spacing AT object distance 500mm

The distance BLinf between the image side surface of the final lens and the optical axis of the electronic photosensitive element when the object distance is infinite

The distance BLmacro between the image side surface of the final lens and the optical axis of the electronic photosensitive element when the object distance is 500mm

The distance TLinf between the object side surface of the first lens and the optical axis of the electronic photosensitive element when the object distance is infinite

The distance TLmacro between the object side surface of the first lens and the optical axis of the electronic photosensitive element when the object distance is 500mm

Nmax for maximum lens refractive index of optical lens group for image pickup

Entrance pupil aperture EPDinf of optical lens group for shooting at infinite object distance

Minimum lens center thickness CTmin of optical lens group for shooting on optical axis

Distance SLinf between aperture and optical axis of electronic photosensitive element when object distance is infinite

Sum of thicknesses Σ CT of multiple lenses on optical axis

Maximum image height ImgH of imaging optical lens group

Abbe number V of lens of optical lens group for camera shooting

Maximum effective radius Y11 of object side surface of first lens

Maximum effective radius Ylast of the image side of the final lens

Variable mirror spacing A, B1, B2, C, D1, D2, E, F, G, H, I of adjacent lenses on the optical axis

Detailed Description

The invention provides an image capturing device, which comprises an optical lens group for shooting and an electronic photosensitive element. The optical lens group for shooting comprises a plurality of lenses, wherein each lens comprises an object side surface facing to the object side direction and an image side surface facing to the image side direction; the lens elements include a first lens element, a second lens element and a last lens element from an object side to an image side. At least one lens in the lenses is made of plastic, so that the production cost can be effectively reduced, and the design freedom is improved, thereby being beneficial to optimizing off-axis aberration. At least one of the lenses includes at least one inflection point, which helps to correct image curvature, satisfy miniaturization characteristics, and make the system Petzval Surface more flat. The multi-lens comprises at least one variable lens spacing, wherein the variable lens spacing is an optical axis distance which can be changed between two adjacent lenses in the multi-lens, and peripheral blurred images can be corrected by adjusting the distance between the lenses.

The first lens element with positive refractive power can provide the main focusing power to effectively compress the system space and achieve the miniaturization requirement. The second lens element with negative refractive power can balance the aberration generated by the first lens element, thereby correcting spherical aberration and chromatic aberration. Finally, the lens can be a negative lens, which is beneficial to achieving a miniaturized module so as to reduce the volume of the device. The image side surface of the last lens can be concave at the paraxial position and can comprise a convex pole at the off-axis position, so that off-axis aberration can be favorably corrected, and the system volume is reduced.

When the object distance is infinity, the optical axis distance between the lens surface closest to the object side and the electronic photosensitive element is TLinf, and the focal length of the image pickup optical lens group is finf; when the image capturing device satisfies the following relation: 0.60< TLinf/finf <2.50, the total length of the system can be balanced, and the size of the visual field can be controlled so as to meet the application requirements of products; wherein, 0.70< TLinf/finf <1.80 can also be satisfied; wherein, 0.80< TLinf/finf <1.50 can also be satisfied.

The minimum lens Abbe number of the optical lens group for shooting is Vdmin; when the image capturing device satisfies the following relation: 10.0< Vdmin <28.0, and can regulate and control the optical path of the system, balance the convergence capacity among the optical lines of different wave bands, and correct chromatic aberration; wherein, can also satisfy that 10.0< Vdmin < 21.0; wherein, can also satisfy 12.0< Vdmin < 20.0; wherein, 13.0< Vdmin <19.0 can also be satisfied.

When the object distance is infinity, the optical axis distance between the lens surface closest to the object side and the electronic photosensitive element is TLinf, and the optical axis distance between at least one variable mirror distance is ATinf; when the object distance is 500mm, the optical axis distance of at least one variable mirror interval is ATmacro, and the optical axis distance between the lens surface closest to the object side and the electronic photosensitive element is TLmacro; when the image capturing device satisfies the following relation: 0.05< | (ATinf-ATmacro)/(TLinf-TLmacro) | <0.80, which can be adjusted for different imaging qualities at the center and periphery of the image at the time of close-up and far-out shots.

The maximum refractive index of the lenses of the image capturing optical lens assembly is Nmax, and when the image capturing device satisfies the following relation: 1.665< Nmax <1.780, provides sufficient optical path deflecting capability for the lens while controlling cost and stabilizing yield. Wherein, also can satisfy: 1.680< Nmax < 1.720.

When the object distance is infinity, the focal length of the image capturing optical lens assembly is finf, the entrance pupil aperture of the image capturing optical lens assembly is EPDinf, and when the image capturing device satisfies the following relation: 1.20< finf/EPDinf <2.0, the lens light inlet aperture can be effectively adjusted, and the light inlet quantity of the system can be controlled to improve the image brightness. Wherein, also can satisfy: 1.30< finf/EPDinf < 1.90.

When the object distance is infinite, the optical axis distance of at least one variable mirror distance is ATinf; when the object distance is 500mm, the optical axis distance of at least one variable mirror distance is ATmacro; the minimum lens center thickness of the image capturing optical lens assembly on the optical axis is CTmin, when the image capturing device satisfies the following relation: 0.01< | (ATinf-ATmacro) |/CTmin <0.50, the ratio between the moving amount of the variable lens and the thickness of the lens can be controlled to ensure the forming property and yield of the lens.

When the object distance is infinite, half of the maximum visual angle in the optical lens group for shooting is HFOV Vinf; when the object distance is 500mm (macro mode), half of the maximum viewing angle in the optical lens set for image pickup is HFOVmacro, and when the image pickup device satisfies the following relation: 35.0 degrees < HFOVinf <65.0 degrees; 35.0 < HFOVmacro <65.0 degrees ensures that the system intercepts a suitable image range to provide sufficient image information while avoiding excessive distortion due to an excessively large viewing angle. Wherein, also can satisfy: 40.0 degrees < HFOVinf <55.0 degrees; 40.0 degrees < HFOVmacro <55.0 degrees.

When the object distance is infinite, the distance between the aperture and the imaging surface on the optical axis is SLinf; when the object distance is infinity, the optical axis distance between the lens surface closest to the object side and the electronic photosensitive element is TLinf, and the image capturing device satisfies the following relation: 0.70< SLinf/TLinf <1.0, the aperture position can be effectively balanced, and the lens volume can be controlled conveniently. Wherein, also can satisfy: 0.80< SLinf/TLinf < 0.97.

The sum of the thicknesses of the lenses on the optical axis is sigma CT; when the object distance is infinite, the distance between the lens surface closest to the object side and the optical axis of the electronic photosensitive element is TLinf; when the image capturing device satisfies the following relation: 0.48< sigma CT/TLinf <0.80, the system space can be fully utilized, and the miniaturization of the lens is facilitated;

the maximum image height of the optical lens group for shooting is ImgH, and when the image capturing device satisfies the following relation: 5.20mm < ImgH <10.0mm, can control the light receiving area, ensure the image brightness and meet the specification requirement. Wherein, also can satisfy: 6.0mm < ImgH <8.5 mm.

When the object distance is infinite, the distance between the lens surface closest to the object side and the optical axis of the electronic photosensitive element is TLinf; the maximum image height of the optical lens group for shooting is ImgH, and when the image capturing device satisfies the following relation: 1.0< TLinf/ImgH <1.80, the overall length of the system can be compressed while providing sufficient light extraction area to avoid vignetting around the image. Wherein, also can satisfy: 1.0< TLinf/ImgH < 1.50. Wherein, also can satisfy: 1.0< TLinf/ImgH < 1.30.

When the object distance is infinite, the optical axis distance of at least one variable mirror distance is ATinf; when the object distance is 500mm, the optical axis distance of at least one variable mirror distance is ATmacro; when the object distance is infinity, the optical axis distance between the lens surface closest to the image side and the electronic photosensitive element is BLinf; when the object distance is 500mm, the optical axis distance between the lens surface closest to the image side and the electronic photosensitive element is BLmacro; the maximum image height of the optical lens group for shooting is ImgH; when the object distance is infinite, the focal length of the optical lens group for shooting is finf; when the image capturing device satisfies the following relation: 0.07< | (ATinf-ATmacro)/(BLinf-BLmacro) | <0.90, and both close shot and far shot can have good image quality by adjusting the distance between the lenses and the electro-optic element and the distance between the lenses; when the image capturing device satisfies the following relation: 0.72< ImgH/finf <1.80, the system view can be balanced to meet most device requirements.

The maximum image height of the optical lens group for shooting is ImgH; when the object distance is infinity, the optical axis distance between the lens surface closest to the image side and the electronic photosensitive element is BLinf, and the image capturing device satisfies the following relation: 3.70< ImgH/BLinf <10.0, which is beneficial to compressing the system volume and having enough light receiving range. Wherein, also can satisfy: 5.0< ImgH/BLinf < 10.0.

The image capturing device comprises a first driving device and a second driving device, and can adjust different moving amounts of different parts in the system under different shooting situations.

The abbe number of the lens of the optical lens group for shooting is V, the optical lens group for shooting comprises at least two lenses, and V <20.0 is satisfied, so that the lens material in the system has the capacity of sufficiently controlling light rays, the focusing positions of the light rays with different wave bands are balanced, and the image overlapping is avoided.

The optical lens group for shooting only comprises one variable lens spacing, can meet the image quality of close shooting and long shooting, and simultaneously avoids the problems of cost increase and yield reduction caused by too complicated mechanisms.

The optical lens group for shooting comprises at least seven lenses, and the variable lens spacing is positioned in the image side direction of the sixth lens, so that the variable lens spacing is close to the imaging surface, and correction can be carried out aiming at different fields of view, thereby improving the quality of peripheral images. The optical lens group for shooting can be a lens group of seven to ten lenses, so that the system volume and the image quality can be effectively balanced, a good image can be obtained, and the overlarge volume of the lens can be avoided.

In another image capturing device, the maximum effective radius of the object-side surface of the first lens element is Y11; the maximum effective radius of the image side surface of the lens closest to the imaging surface is YLast; when the image capturing device satisfies the following relation: 0.10< Y11/glass <0.50, the ratio of the most object-wise and most image-wise lens sizes can be controlled to balance the lens aperture and size requirements.

When the object distance is infinite, the distance between the lens surface closest to the object side and the optical axis of the electronic photosensitive element is TLinf; when the image capturing device satisfies the following relation: 3.0mm < TLinf <15.0mm, the lens volume can be controlled to avoid the device from being too large. Wherein, also can satisfy: 5.0mm < TLinf <11.0 mm.

In another image capturing device, the distance between the lenses closest to the electronic photosensitive element is the largest among the distances between the lenses of all the adjacent lenses, and the distance between the lenses closest to the electronic photosensitive element can be matched with an aspheric surface to balance the optical path difference between the center and the peripheral field of view at the image side, so as to balance the aberration.

In another image capturing device, a first driving device is used to correct the central image quality, a second driving device is used to correct the peripheral image quality, and different devices can be used to respectively correct different parts to achieve better image quality.

Another Image capturing device includes an Optical Image Stabilization (Optical Image Stabilization) device, which can optimize user experience and improve the influence caused by Image shaking.

Another image capturing device includes a driving device made of Shape Memory alloy (Shape Memory Alloys) or piezoelectric material, which can simplify the driving structure and reduce the error probability during operation.

In another image capturing device, when the first driving device is actuated, the distance between lenses is not changed, which is beneficial to correcting the central aberration of the system; the pixels of the electronic photosensitive elements are more than fifty million, and better image fineness can be provided for users. Wherein, the pixels of the electronic photosensitive elements can be larger than one hundred million pixels.

In another image capturing device, when the second driving device is activated, the distance between the lenses is changed, which is beneficial to correcting the peripheral aberration of the system. When the object distance is infinite, the optical axis distance of at least one variable mirror distance is ATinf; when the object distance is 500mm, the optical axis distance of at least one variable mirror distance is ATmacro; when the image capturing device satisfies the following relation: 0.07mm < | (ATinf-ATmacro) | 10<1.0mm, and the optimal moving amount of the partial lens can be controlled so as to effectively correct the peripheral image aberration.

In another image capturing device, when the first driving device is actuated, the second driving device is also driven by the first driving device to move, so as to simplify the design of the lens mechanism, improve the coaxiality of the system, and avoid the image blur caused by the deviation of the axis of the lens.

The invention provides an electronic device, comprising at least two image capturing devices, wherein the at least two image capturing devices are positioned at the same side of the electronic device, and the at least two image capturing devices comprise: a first image capturing device comprising the image capturing device; and a second image capturing device including an optical lens assembly and an electronic photosensitive element; the difference between the visual angle of the first image capturing device and the visual angle of the second image capturing device is at least 30 degrees, so that images with different ranges and fineness can be provided for the devices, and various use conditions can be met.

Referring to fig. 10A, a schematic diagram illustrating the distance between lenses and the distance between the lens and the image plane when the object distance is infinity is illustrated. A variable lens pitch ainf is between the image-side surface 1032 of the third lens element 1030 and the object-side surface 1041 of the fourth lens element 1040, a back focal length BLinf is between the image-side surface 1042 of the fourth lens element 1040 and the image plane 1055, and a total length TLinf is between the object-side surface 1011 of the first lens element 1010 and the image plane 1055.

Referring to fig. 10B, a schematic diagram illustrating the distance between the lenses and the image plane when the object distance is 500mm (macro mode) is illustrated. The variable lens pitch ATmacro is between the image-side surface 1032 of the third lens element 1030 and the object-side surface 1041 of the fourth lens element 1040, the back focal distance BLmacro is between the image-side surface 1042 of the fourth lens element 1040 and the image plane 1055, and the total length TLmacro is between the object-side surface 1011 of the first lens element 1010 and the image plane 1055. When the image capturing device is switched between the infinite object distance mode and the macro mode, the variable lens pitches (ATinf and ATmacro) are correspondingly changed, and the pitches of other lenses are kept unchanged.

Referring to fig. 11A, a schematic diagram illustrating a relationship between a driving device and lenses of an image capturing device according to the present invention is shown, wherein a second driving device 1120 is attached to a first driving device 1100, and a local lens fine adjustment (e.g. a fourth lens 1040) can be performed to change a distance between a third lens 1030 and the fourth lens 1040, which can be implemented by only one lens barrel, but is not limited thereto.

Referring to fig. 11B, a schematic diagram illustrating a relationship between a driving device and a lens of an image capturing device according to the present invention is shown. The first driving device 1130 and the second driving device 1140 operate respectively, and a portion (e.g., the third lens 1030) driven by the first driving device 1130 and a portion (e.g., the fourth lens 1040) driven by the second driving device 1140 do not affect each other and generate displacement.

Referring to fig. 12A, a schematic diagram illustrating the distance between lenses and the distance between the lens and the image plane when the object distance is infinity is illustrated. A variable lens pitch AT1inf is provided between the image-side surface 1222 of the second lens element 1220 and the object-side surface 1231 of the third lens element 1230, a variable lens pitch AT2inf is provided between the image-side surface 1232 of the third lens element 1230 and the object-side surface 1241 of the fourth lens element 1240, a back focal distance BLinf is provided between the image-side surface 1242 of the fourth lens element 1240 and the image plane 1255, and a total length distance TLinf is provided between the object-side surface 811 of the first lens element 810 and the image plane 855.

Referring to fig. 12B, a schematic diagram illustrating the distance between the lenses and the distance between the lens and the image plane when the object distance is 500mm (macro mode) is illustrated. The variable lens pitch AT1macro is between the image-side surface 1222 of the second lens 1220 and the object-side surface 1231 of the third lens 1230, the variable lens pitch AT2macro is between the image-side surface 1232 of the third lens 1230 and the object-side surface 1241 of the fourth lens 1240, the back focal distance BLmacro is between the image-side surface 1242 of the fourth lens 1240 and the image plane 1255, and the total length distance TLmacro is between the object-side surface 1211 of the first lens 1210 and the image plane 1255. When the image capturing device is switched between the infinite object distance mode and the macro mode, the variable lens pitches (AT1inf, AT2inf, AT1macro and AT2macro) are correspondingly changed, and the pitches of other lenses are kept unchanged.

Please refer to fig. 13A, which is a schematic diagram illustrating a relationship between a driving device and a lens of an image capturing device according to the present invention. The second driving mechanism 1320 is attached to the first driving mechanism 1300, and can perform a local lens fine adjustment (e.g. the third lens 1230) to change the distance between the second lens 1220 and the third lens 1230 and the distance between the third lens 1230 and the fourth lens 1240, which can be implemented by only one lens barrel, but is not limited thereto. The two variable mirror pitches can be changed by the first and second driving devices 1300 and 1320 shown in fig. 13A.

Please refer to fig. 13B, which is a schematic diagram illustrating a relationship between a driving device and a lens of an image capturing device according to the present invention. The first driving device 1330, the second driving device 1340, and the third driving device 1350 are operated separately, and the second lens 1220, the third lens 1230, and the fourth lens 1240 are operated separately, so that they will not affect each other's position. The two variable mirror pitches can be changed by the first, second, and third drives 1330, 1340, and 1350 shown in fig. 13B.

The first and second driving devices may comprise a magnet, a coil, a ball, a spring, a screw, a solenoid, a Shape Memory Alloy (SMA), a piezoelectric material, or other drivable elements.

All technical features of the image capturing device of the present invention can be combined and configured to achieve corresponding effects.

In the imaging optical lens assembly disclosed in the present invention, the object side and the image side are along the optical axis direction.

In the optical lens assembly for camera shooting disclosed by the invention, the material of the lens can be glass or plastic. If the lens element is made of glass, the degree of freedom of the refractive power configuration of the optical lens assembly for image pickup can be increased, and the influence of the external environmental temperature change on the image formation can be reduced. If the lens is made of plastic, the production cost can be effectively reduced. In addition, the mirror surface can be provided with a spherical surface or an Aspherical Surface (ASP), wherein the spherical lens can reduce the manufacturing difficulty, and if the mirror surface is provided with the aspherical surface, more control variables can be obtained so as to reduce the aberration and the number of optical elements, and the total length of the optical lens group for shooting can be effectively reduced, and the aspherical surface can be manufactured by plastic injection molding or modeling glass lenses and the like.

In the optical lens assembly for photographing disclosed in the present invention, if the lens surface is aspheric, it means that the whole or a part of the optical effective area of the lens surface is aspheric.

In the optical lens assembly for camera shooting disclosed by the invention, additives can be selectively added into any (more than one) lens material to change the transmittance of the lens to light rays with specific wave bands, so as to further reduce stray light and color cast. For example: the additive can have the function of filtering light rays in a wave band of 600 nanometers to 800 nanometers in the system, so that redundant red light or infrared light can be reduced; or the light with wave band of 350 nm to 450 nm can be filtered out to reduce the redundant blue light or ultraviolet light, therefore, the additive can prevent the light with specific wave band from causing interference to the imaging. In addition, the additives can be uniformly mixed in the plastic and made into the lens by the injection molding technology.

In the optical lens assembly for image pickup disclosed in the present invention, at least one Stop (Stop), such as an Aperture Stop (Aperture Stop), a Glare Stop (Glare Stop) or a Field Stop (Field Stop), may be disposed, which is helpful for reducing stray light to improve image quality.

In the optical lens assembly for photographing disclosed by the invention, the aperture configuration can be in a front or middle position, the front aperture means that the aperture is arranged between a subject and the first lens, the middle aperture means that the aperture is arranged between the first lens and the imaging surface, the front aperture can enable an Exit Pupil (Exit Pupil) of the image capturing device to generate a longer distance with the imaging surface, so that the image capturing device has a Telecentric (telecentricity) effect, and the image receiving efficiency of an electronic photosensitive element such as a CCD (charge coupled device) or a CMOS (complementary metal oxide semiconductor) can be increased; the central aperture is helpful to enlarge the field angle of the lens, so that the image capturing device has the advantage of a wide-angle lens.

The present invention can be suitably provided with a variable aperture element, which can be a mechanical member or a light control element, which can control the size and shape of the aperture by an electric or electrical signal. The mechanical component can comprise a blade group, a shielding plate and other movable parts; the light regulating element may comprise a light filtering element, an electrochromic material, a liquid crystal layer and other shielding materials. The variable aperture element can enhance the image adjustment capability by controlling the amount of light entering or the exposure time of the image. In addition, the variable aperture device can also be an aperture of the present invention, and the F value can be changed to adjust the image quality, such as the depth of field or the exposure speed.

In the optical lens assembly for photographing disclosed in the present invention, if the lens surface is convex and the position of the convex surface is not defined, it means that the lens surface can be convex at the paraxial region; if the lens surface is concave and the concave position is not defined, this means that the lens surface can be concave at the paraxial region. If the refractive power or focal length of the lens element does not define the position of the lens region, it means that the refractive power or focal length of the lens element can be the refractive power or focal length of the lens element at the paraxial region.

In the image capturing optical lens assembly disclosed in the present invention, the image plane of the image capturing optical lens assembly may be a plane or a curved surface with any curvature, especially a curved surface with a concave surface facing the object side, depending on the corresponding electronic photosensitive device. In the imaging optical lens group of the present invention, one or more imaging correction elements (flat field elements, etc.) may be selectively arranged between the lens closest to the imaging surface and the imaging surface, so as to achieve the effect of correcting the image (such as curvature of image, etc.). The optical properties of the imaging correction element, such as curvature, thickness, refractive index, position, surface shape (convex or concave, spherical or aspherical, diffractive and fresnel surfaces, etc.) can be adjusted according to the requirements of the image capturing device. In general, the preferred imaging correction element is configured as a thin plano-concave element having a concave surface facing the object side disposed near the imaging surface.

The image capturing device of the present disclosure will be described in detail with reference to the following embodiments and accompanying drawings.

First embodiment

Fig. 1A is a schematic diagram of an image capturing apparatus at an infinite object distance according to a first embodiment of the present invention, and fig. 1B is a diagram of an aberration curve. The image capturing device of the first embodiment includes an image capturing optical lens assembly (not numbered) and an electronic photosensitive element 195, the image capturing optical lens assembly includes, in order from an object side to an image side of an optical path, an aperture stop 100, a first lens element 110, a second lens element 120, a third lens element 130, a fourth lens element 140, a fifth lens element 150, a sixth lens element 160, a seventh lens element 170, a filter element 180, and an image plane 190, wherein no other intervening optical element is disposed between the first lens element 110 and the seventh lens element 170, and an air space is disposed between the lens elements on the optical axis. The fifth lens element 150 and the sixth lens element 160 have a variable lens distance a on the optical axis, and can be implemented by the driving device of fig. 11A or 11B for switching between the infinite object distance mode and the macro object distance mode as required.

The first lens element 110 with positive refractive power has a convex object-side surface 111 at a paraxial region, a concave image-side surface 112 at a paraxial region, and both the object-side surface 111 and the image-side surface 112 are aspheric.

The second lens element 120 with negative refractive power has a convex object-side surface 121 at a paraxial region, a concave image-side surface 122 at a paraxial region, and both the object-side surface 121 and the image-side surface 122 are aspheric.

The third lens element 130 with positive refractive power has a convex object-side surface 131 at a paraxial region, a concave image-side surface 132 at a paraxial region, and both the object-side surface 131 and the image-side surface 132 are aspheric.

The fourth lens element 140 with positive refractive power has a convex object-side surface 141 at a paraxial region, a convex image-side surface 142 at a paraxial region, and both object-side and image- side surfaces 141 and 142 are aspheric.

The fifth lens element 150 with negative refractive power is made of plastic, and has a concave object-side surface 151 at a paraxial region, a convex image-side surface 152 at a paraxial region, and both the object-side surface 151 and the image-side surface 152 are aspheric.

The sixth lens element 160 with positive refractive power has a convex object-side surface 161 at a paraxial region, a convex image-side surface 162 at a paraxial region, and both the object-side surface 161 and the image-side surface 162 being aspheric.

The seventh lens element 170 with negative refractive power is made of plastic, and has an object-side surface 171 being concave at a paraxial region and having at least one inflection point at an off-axis region, and an image-side surface 172 being concave at a paraxial region and having at least one inflection point at an off-axis region, wherein the object-side surface 171 and the image-side surface 172 are aspheric.

The filter element 180 is disposed between the seventh lens element 170 and the image plane 190, and is made of glass without affecting the focal length. The electron photosensitive element 195 is disposed on the image forming surface 190.

The detailed optical data of the first embodiment is shown in table one, where the unit of the radius of curvature, the thickness and the focal length is millimeter, f denotes the focal length (including two data of object distance infinity/macro, and f denotes the data of object distance infinity/object distance 500mm), Fno denotes the aperture value (including two data of object distance infinity/macro, and Fno denotes the data of object distance infinity/object distance 500mm), HFOV denotes half of the maximum viewing angle (including two data of object distance infinity/macro, and HFOV denotes the data of object distance infinity/object distance 500mm), and surfaces 0-18 sequentially denote surfaces from the object side to the image side, and the lens thickness (and mirror surface spacing) includes two modes of object distance infinity and macro (object distance 500 mm). The aspheric data are shown in Table two, where k represents the cone coefficient in the aspheric curve equation and A4-A16 represents the 4 th to 16 th order aspheric coefficients of each surface. In addition, the following tables of the embodiments correspond to the schematic diagrams and aberration graphs of the embodiments, and the definitions of the data in the tables are the same as those of the first and second tables of the first embodiment, which is not repeated herein.

The equation for the above aspheric curve is expressed as follows:

wherein the content of the first and second substances,

x: the relative distance between a point on the aspheric surface, which is Y away from the optical axis, and a tangent plane tangent to the vertex on the aspheric surface optical axis;

y: the perpendicular distance between a point on the aspheric curve and the optical axis;

r: a radius of curvature;

k: the cone coefficient;

ai: the ith order aspheric coefficients.

In the first embodiment, when the object distance is infinity, the focal length of the image pickup optical lens group is finf, the aperture value of the image pickup optical lens group is Fnoinf, and half of the maximum field of view in the image pickup optical lens group is HFOVinf; when the object distance is 500mm, half of the maximum viewing angle in the imaging optical lens group is HFOVmacro. The values are: finf is 5.95 (mm), Fnoinf is 1.93, HFOVinf is 45.2 (degrees), HFOVmacro is 45.0 (degrees).

In the first embodiment, the maximum refractive index of the lenses of the imaging optical lens group is Nmax, and the numerical values thereof are: nmax is 1.686.

In the first embodiment, the minimum of the abbe numbers of the lenses of the image capturing optical lens assembly is Vdmin, and the numerical value thereof is: vdmin is 18.4.

In the first embodiment, the sum of the thicknesses of the lenses on the optical axis is Σ CT; when the object distance is infinite, the distance between the lens surface closest to the object side and the optical axis of the electronic photosensitive element is TLinf; the relation is as follows: Σ CT/TLinf is 0.52.

In the first embodiment, when the object distance is infinity, the focal length of the image pickup optical lens group is finf; the entrance pupil aperture of the optical lens group for shooting is EPDinf, and the relational expression is as follows: finf/EPDinf is 1.93.

In the first embodiment, when the object distance is infinity, the distance on the optical axis between the aperture stop and the image plane is SLinf, the distance on the optical axis between the lens surface closest to the object side and the electro-optic device is TLinf, and the relationship is: SLinf/TLinf is 0.96.

In the first embodiment, when the object distance is infinity, the optical axis distance between the lens surface closest to the object side and the electron sensor element is TLinf, which has the following value: TLinf 8.60 (mm).

In the first embodiment, the maximum image height of the image pickup optical lens group is ImgH, and the values thereof are: ImgH 6.200 (mm).

In the first embodiment, the maximum image height of the image pickup optical lens group is ImgH, and when the object distance is infinity, the focal length of the image pickup optical lens group is finf, and the relationship is: ImgH/finf is 1.04.

In the first embodiment, the maximum image height of the image capturing optical lens assembly is ImgH, and when the object distance is infinity, the optical axis distance between the lens surface closest to the image side and the electronic photosensitive element is BLinf, and the relationship is as follows: ImgH/BLinf 3.87.

In the first embodiment, when the object distance is infinity, the optical axis distance between the lens surface closest to the object side and the electronic photosensitive element is TLinf, and the focal length of the image capturing optical lens assembly is finf, the relationship is: TLinf/finf 1.44.

In the first embodiment, when the object distance is infinity, the optical axis distance between the lens surface closest to the object side and the electronic photosensitive element is TLinf, the maximum image height of the image capturing optical lens assembly is ImgH, and the relationship is as follows: TLinf/ImgH is 1.39.

In the first embodiment, the maximum effective radius of the object-side surface of the first lens is Y11; the maximum effective radius of the image-side surface of the lens closest to the image-forming surface (the image-side surface of the seventh lens) is Ylast, and the relation is as follows: Y11/YLast is 0.29.

In the first embodiment, when the object distance is infinity, the optical axis distance of at least one variable mirror distance is ATinf; when the object distance is 500mm, the optical axis distance of at least one variable mirror distance is ATmacro, and the relation is as follows: "(ATinf-ATmacro) | 10 ═ 0.10 (millimeters).

In the first embodiment, when the object distance is infinity, the optical axis distance of at least one variable mirror distance is ATinf; when the object distance is 500mm, the optical axis distance of at least one variable mirror distance is ATmacro; the minimum lens center thickness of the optical lens group for shooting on the optical axis is CTmin, and the relation is as follows: "(ATinf-ATmacro) |/CTmin ═ 0.04.

In the first embodiment, when the object distance is infinity, the optical axis distance of at least one variable mirror distance is ATinf; when the object distance is 500mm, the optical axis distance of at least one variable mirror distance is ATmacro; when the object distance is infinite, the distance between the lens surface closest to the object side and the optical axis of the electronic photosensitive element is TLinf; when the object distance is 500mm, the distance between the lens surface closest to the object side and the optical axis of the electronic photosensitive element is TLmacro; the relation is as follows: and | (ATinf-atmacroro)/(TLinf-tlmacroro) | 0.13.

In the first embodiment, when the object distance is infinity, the optical axis distance of at least one variable mirror distance is ATinf; when the object distance is 500mm, the optical axis distance of at least one variable mirror distance is ATmacro; when the object distance is infinity, the optical axis distance between the lens surface closest to the image side and the electronic photosensitive element is BLinf; when the object distance is 500mm, the optical axis distance between the lens surface closest to the image side and the electronic photosensitive element is BLmacro; the relation is as follows: (ATinf-ATmacro)/(BLinf-BLmacro) | 0.14.

Second embodiment

The image capturing device of the second embodiment of the present invention uses the same optical system as the first embodiment, but the image capturing device of the second embodiment includes two variable lens spacings, and the schematic view of the image capturing device when the object distance is infinite refers to fig. 2A, and the aberration curve refers to fig. 2B. The image capturing device of the second embodiment of the present invention includes an image capturing optical lens assembly (not numbered) and an electronic photosensitive element 295, the image capturing optical lens assembly includes, in order from an object side to an image side of an optical path, an aperture stop 200, a first lens element 210, a second lens element 220, a third lens element 230, a fourth lens element 240, a fifth lens element 250, a sixth lens element 260, a seventh lens element 270, a filter element 280 and an image plane 290, wherein no other intervening optical element is disposed between the first lens element 210 and the seventh lens element 270, and an air space is disposed between the lens elements on the optical axis. The second lens 220 and the third lens 230 have an optically variable mirror pitch B1 therebetween, and the third lens 230 and the fourth lens 240 have an optically variable mirror pitch B2 therebetween, which can be implemented by the driving device shown in fig. 13A or 13B.

The detailed optical data of the second embodiment is shown in table three, and the aspheric data thereof is shown in table four.

The second embodiment aspherical surface curve equation is expressed as in the first embodiment. In addition, the parameters of each relation are as explained in the first embodiment, but the numerical values of each relation are as listed in the following table. Wherein, HFOV Vinf and HFOV Vraco are maximum half visual angle values of infinite object distance/500 mm object distance respectively.

Third embodiment

Referring to fig. 3A, a schematic diagram of an image capturing apparatus at an infinite object distance according to a third embodiment of the present invention, and a graph of aberration is shown in fig. 3B. The image capturing device of the third embodiment of the present invention includes an image capturing optical lens assembly (not numbered) and an electronic photosensitive element 395, the image capturing optical lens assembly includes, in order from an object side to an image side of an optical path, an aperture stop 300, a first lens element 310, a second lens element 320, a stop 301, a third lens element 330, a fourth lens element 340, a fifth lens element 350, a sixth lens element 360, a seventh lens element 370, a filter element 380 and an image plane 390, wherein there are no other intervening optical elements between the first lens element 310 and the seventh lens element 370, and an air gap exists between the respective lens elements on the optical axis. The fifth lens 350 and the sixth lens 360 have a variable mirror pitch C on the optical axis, and can be implemented by the driving device of fig. 11A or 11B as needed.

The first lens element 310 with positive refractive power has a convex object-side surface 311 at a paraxial region, a concave image-side surface 312 at a paraxial region, and both the object-side surface 311 and the image-side surface 312 are aspheric.

The second lens element 320 with negative refractive power has a concave object-side surface 321 at a paraxial region, a concave image-side surface 322 at a paraxial region, and both the object-side surface 321 and the image-side surface 322 are aspheric.

The third lens element 330 with positive refractive power has a convex object-side surface 331 at a paraxial region, a concave image-side surface 332 at a paraxial region, and both object-side surface 331 and image-side surface 332 being aspheric.

The fourth lens element 340 with negative refractive power is made of plastic, and has a concave object-side surface 341 at a paraxial region, a concave image-side surface 342 at a paraxial region, and both the object-side surface 341 and the image-side surface 342 being aspheric.

The fifth lens element 350 with positive refractive power has a convex object-side surface 351 at a paraxial region, a concave image-side surface 352 at a paraxial region, and both the object-side surface 351 and the image-side surface 352 being aspheric.

The sixth lens element 360 with positive refractive power has a convex object-side surface 361 at a paraxial region, a concave image-side surface 362 at a paraxial region, and both object-side surface 361 and image-side surface 362 being aspheric.

The seventh lens element 370 with negative refractive power is made of plastic, and has a concave object-side surface 371 at a paraxial region and at least one inflection point at an off-axis region, a convex image-side surface 372 at a paraxial region and at least one inflection point at an off-axis region, and both the object-side surface 371 and the image-side surface 372 are aspheric.

The filter element 380 is disposed between the seventh lens element 370 and the image plane 390, and is made of glass without affecting the focal length. The electron photosensitive element 395 is disposed on the imaging surface 390.

The detailed optical data of the third embodiment is shown in table five, and the aspheric data thereof is shown in table six.

The third embodiment aspherical surface curve equation is expressed as in the form of the first embodiment. Further, the parameters of each relation are as explained in the first embodiment, but the values of each relation are as listed in the following table, wherein HFOVinf, HFOVmacro are maximum half view values of object distance infinity/object distance 500mm, respectively.

Fourth embodiment

The fourth embodiment of the present invention and the third embodiment adopt the same optical system, but the image capturing device of the fourth embodiment includes two variable lens distances, the schematic diagram of the image capturing device when the object distance is infinite refers to fig. 4A, and the aberration curve refers to fig. 4B. The image capturing device of the fourth embodiment of the present invention includes an image capturing optical lens assembly (not numbered) and an electronic photosensitive element 495, the image capturing optical lens assembly includes, in order from an object side to an image side, an aperture stop 400, a first lens element 410, a second lens element 420, a stop 401, a third lens element 430, a fourth lens element 440, a fifth lens element 450, a sixth lens element 460, a seventh lens element 470, a filter 480 and an image plane 490, and the first lens element 410, the second lens element 420, the third lens element 430, the fourth lens element 440, the fifth lens element 450, the sixth lens element 460 and the seventh lens element 470 have an air gap therebetween on an optical axis. The fourth lens 440 and the fifth lens 450 have a variable mirror distance D1 on the optical axis therebetween. The fifth lens 450 and the sixth lens 460 have a variable mirror distance D2 on the optical axis therebetween, and can be implemented by the driving apparatus of fig. 13A or 13B as necessary.

The detailed optical data of the fourth embodiment is shown in table seven, and the aspheric data thereof is shown in table eight.

The fourth embodiment aspherical surface curve equation is expressed as in the form of the first embodiment. Further, the parameters of each relation are as explained in the first embodiment, but the values of each relation are as listed in the following table, wherein HFOVinf, HFOVmacro are maximum half view values of object distance infinity/object distance 500mm, respectively.

Fifth embodiment

Fig. 5A is a schematic diagram of an image capturing apparatus at an infinite object distance according to a fifth embodiment of the present invention, and fig. 5B is an aberration curve diagram. The image capturing device of the fifth embodiment of the present invention includes an image capturing optical lens assembly (not numbered) and an electronic sensing element 595, wherein the image capturing optical lens assembly includes, in order from an object side to an image side of an optical path, an aperture stop 500, a first lens element 510, a second lens element 520, a third lens element 530, a fourth lens element 540, a first stop 501, a fifth lens element 550, a sixth lens element 560, a seventh lens element 570, a second stop 502, an eighth lens element 580, a filter element 593 and an image plane 594, and the first lens element 510, the second lens element 520, the third lens element 530, the fourth lens element 540, the fifth lens element 550, the sixth lens element 560, the seventh lens element 570 and the eighth lens element 580 have an air gap therebetween on an optical axis. The seventh lens 570 and the eighth lens 580 have a variable mirror pitch E on the optical axis, and can be implemented by the driving device of fig. 11A or 11B as necessary.

The first lens element 510 with positive refractive power has a convex object-side surface 511 at a paraxial region, a concave image-side surface 512 at a paraxial region, and both the object-side surface 511 and the image-side surface 512 are aspheric.

The second lens element 520 with negative refractive power has a convex object-side surface 521 at a paraxial region, a concave image-side surface 522 at a paraxial region, and both object-side surface 521 and image-side surface 522 being aspheric.

The third lens element 530 with negative refractive power has a convex object-side surface 531 at a paraxial region, a concave image-side surface 532 at a paraxial region, and both the object-side surface 531 and the image-side surface 532 are aspheric.

The fourth lens element 540 with positive refractive power is made of plastic, and has a concave object-side surface 541 at a paraxial region, a convex image-side surface 542 at a paraxial region, and both the object-side surface 541 and the image-side surface 542 thereof are aspheric.

The fifth lens element 550 with positive refractive power has a convex object-side surface 551 at a paraxial region, a concave image-side surface 552 at a paraxial region, and both object-side surface 551 and image-side surface 552 being aspheric.

The sixth lens element 560 with negative refractive power is made of plastic, and has a convex object-side surface 561 at a paraxial region, a concave image-side surface 562 at a paraxial region, and both the object-side surface 561 and the image-side surface 562 are aspheric.

The seventh lens element 570 with positive refractive power is made of plastic, and has a convex object-side surface 571 at a paraxial region and at least one inflection point at an off-axis region, a concave image-side surface 572 at a paraxial region and at least one inflection point at an off-axis region, wherein the object-side surface 571 and the image-side surface 572 are aspheric.

The eighth lens element 580 with negative refractive power is made of plastic, and has a concave object-side surface 581 at a paraxial region and at least one inflection point at an off-axis region, a concave image-side surface 582 at a paraxial region and at least one inflection point at an off-axis region, and both the object-side surface 581 and the image-side surface 582 being aspheric.

The filter 593 is disposed between the eighth lens element 580 and the image plane 594, and is made of glass without affecting the focal length. The electro-optic element 595 is disposed on the image plane 594.

The detailed optical data of the fifth embodiment is shown in table nine, and the aspheric data thereof is shown in table ten.

The fifth embodiment aspherical surface curve equation is expressed as in the form of the first embodiment. Further, the parameters of each relation are as explained in the first embodiment, but the values of each relation are as listed in the following table, wherein HFOVinf, HFOVmacro are maximum half view values of object distance infinity/object distance 500mm, respectively.

Sixth embodiment

The sixth embodiment of the present invention and the fifth embodiment use the same optical system, but the sixth embodiment includes different variable lens pitches, and the schematic diagram of the image capturing device when the object distance is infinity refers to fig. 6A, and the aberration curve refers to fig. 6B. The image capturing device of the sixth embodiment of the present invention includes an image capturing optical lens assembly (not numbered) and an electronic photosensitive element 695, wherein the image capturing optical lens assembly, in order from an object side to an image side, includes an aperture stop 600, a first lens element 610, a second lens element 620, a third lens element 630, a fourth lens element 640, a first stop 601, a fifth lens element 650, a sixth lens element 660, a seventh lens element 670, a second stop 602, an eighth lens element 680, a filter 693 and an image plane 694, and the first lens element 610, the second lens element 620, the third lens element 630, the fourth lens element 640, the fifth lens element 650, the sixth lens element 660, the seventh lens element 670 and the eighth lens element 680 have an air gap on an optical axis. The fifth lens 650 and the sixth lens 660 have a variable mirror pitch F on the optical axis, and can be implemented by the driving device of fig. 11A or 11B as necessary.

The detailed optical data of the sixth embodiment is shown in table eleven, and the aspherical data thereof is shown in table twelve.

The sixth embodiment aspherical surface curve equation is expressed as in the form of the first embodiment. Further, the parameters of each relation are as explained in the first embodiment, but the values of each relation are as listed in the following table, wherein HFOVinf, HFOVmacro are maximum half view values of object distance infinity/object distance 500mm, respectively.

Seventh embodiment

Fig. 7A is a schematic diagram of an image capturing apparatus at an infinite object distance according to a seventh embodiment of the present invention, and fig. 7B is a graph of aberration curves. The image capturing device of the seventh embodiment of the present invention includes an image capturing optical lens assembly (not numbered) and an electronic photosensitive element 795, the image capturing optical lens assembly includes, in order from an object side to an image side of an optical path, a first lens element 710, a second lens element 720, an aperture stop 700, a third lens element 730, a fourth lens element 740, a stop 701, a fifth lens element 750, a sixth lens element 760, a seventh lens element 770, a filter 780 and an image plane 790, and the first lens element 710, the second lens element 720, the third lens element 730, the fourth lens element 740, the fifth lens element 750, the sixth lens element 760 and the seventh lens element 770 have an air gap therebetween on an optical axis. The sixth lens 760 and the seventh lens 770 have a variable mirror pitch G on the optical axis, and can be implemented by the driving device of fig. 11A or 11B as necessary.

The first lens element 710 with negative refractive power has a concave object-side surface 711 at a paraxial region, a convex image-side surface 712 at a paraxial region, and both object-side surface 711 and image-side surface 712 being aspheric.

The second lens element 720 with positive refractive power has a convex object-side surface 721 at a paraxial region, a concave image-side surface 722 at a paraxial region, and both the object-side surface 721 and the image-side surface 722 are aspheric.

The third lens element 730 with positive refractive power has a concave object-side surface 731 at a paraxial region, a convex image-side surface 732 at a paraxial region, and both the object-side surface 731 and the image-side surface 732 are aspheric.

The fourth lens element 740 with negative refractive power is made of plastic, and has a concave object-side surface 741 at a paraxial region, a convex image-side surface 742 at a paraxial region, and both the object-side surface 741 and the image-side surface 742 are aspheric.

The fifth lens element 750 with negative refractive power has a concave object-side surface 751 at a paraxial region, a concave image-side surface 752 at a paraxial region, and both the object-side surface 751 and the image-side surface 752 are aspheric.

The sixth lens element 760 with positive refractive power is made of plastic, and has an object-side surface 761 being convex at a paraxial region and having at least one inflection point at an off-axis region, an image-side surface 762 being concave at a paraxial region and having at least one inflection point at an off-axis region, and both the object-side surface 761 and the image-side surface 762 being aspheric.

The seventh lens element 770 with negative refractive power is made of plastic, and has an object-side surface 771 being convex at a paraxial region and having at least one inflection point at an off-axis region, and an image-side surface 772 being concave at the paraxial region and having at least one inflection point at the off-axis region, wherein the object-side surface 771 and the image-side surface 772 are aspheric.

The filter 780 is disposed between the seventh lens 770 and the image plane 790, and is made of glass without affecting the focal length. The electron photosensitive element 795 is disposed on the image plane 790.

The detailed optical data of the seventh embodiment is shown in table thirteen, and the aspheric data thereof is shown in table fourteen.

The expression of the aspherical surface curve equation of the seventh embodiment is the same as that of the first embodiment. Further, the parameters of each relation are as explained in the first embodiment, but the values of each relation are as listed in the following table, wherein HFOVinf, HFOVmacro are maximum half view values of object distance infinity/object distance 500mm, respectively.

Eighth embodiment

Fig. 8A is a schematic diagram of an image capturing apparatus at an infinite object distance according to an eighth embodiment of the present invention, and fig. 8B is a graph of aberration curves. The image capturing device of the eighth embodiment of the present invention includes an image capturing optical lens assembly (not numbered) and an electronic photosensitive element 895, wherein the image capturing optical lens assembly includes, in order from an object side to an image side, an aperture stop 800, a first lens element 810, a second lens element 820, a third lens element 830, a first diaphragm 801, a fourth lens element 840, a fifth lens element 850, a sixth lens element 860, a seventh lens element 870, an eighth lens element 880, a ninth lens element 890, a second diaphragm 802, a filter 893, and an image plane 894, and the first lens element 810, the second lens element 820, the third lens element 830, the fourth lens element 840, the fifth lens element 850, the sixth lens element 860, the seventh lens element 870, the eighth lens element 880, and the ninth lens element 890 have an air gap therebetween on an optical axis. The eighth lens 880 and the ninth lens 890 have a variable mirror pitch H on the optical axis therebetween, and can be implemented by the driving device of fig. 11A or 11B as necessary.

The first lens element 810 with positive refractive power has a convex object-side surface 811 at a paraxial region, a concave image-side surface 812 at a paraxial region, an aspheric object-side surface 811, and a spherical image-side surface 812.

The second lens element 820 with negative refractive power has a convex object-side surface 821 at a paraxial region, a concave image-side surface 822 at a paraxial region, and both object-side surface 821 and image-side surface 822 are aspheric.

The third lens element 830 with negative refractive power has a convex object-side surface 831 at a paraxial region, a concave image-side surface 832 at a paraxial region, and both the object-side surface 831 and the image-side surface 832 being aspheric.

The fourth lens element 840 with positive refractive power has a convex object-side surface 841 at a paraxial region, a concave image-side surface 842 at a paraxial region, and both the object-side surface 841 and the image-side surface 842 being aspheric.

The fifth lens element 850 with positive refractive power has a convex object-side surface 851 at a paraxial region and a convex image-side surface 852 at a paraxial region, and both the object-side surface 851 and the image-side surface 852 are aspheric.

The sixth lens element 860 with negative refractive power is made of plastic, and has a concave object-side surface 861 at the paraxial region, a convex image-side surface 862 at the paraxial region, and both the object-side surface 861 and the image-side surface 862 are aspheric.

The seventh lens element 870 with negative refractive power is made of plastic, and has an object-side surface 871 being convex in a paraxial region, an image-side surface 872 being concave in a paraxial region, and both the object-side surface 871 and the image-side surface 872 being aspheric.

The eighth lens element 880 with positive refractive power is made of plastic, has a convex object-side surface 881 at a paraxial region and at least one inflection point at an off-axis region, has a concave image-side surface 882 at a paraxial region and at least one inflection point at an off-axis region, and has an aspheric object-side surface 881 and an aspheric image-side surface 882.

The ninth lens element 890 with negative refractive power is made of plastic, and has an object-side surface 891 being concave at a paraxial region and having at least one inflection point at an off-axis region, an image-side surface 892 being concave at the paraxial region and having at least one inflection point at the off-axis region, and both the object-side surface 891 and the image-side surface 892 being aspheric.

The filter 893 is disposed between the ninth lens 890 and the image plane 894, and is made of glass without affecting the focal length. The electron photosensitive element 895 is disposed on the image forming surface 894.

The detailed optical data of the eighth embodiment is shown in table fifteen, and the aspheric data thereof is shown in table sixteen.

The eighth embodiment aspherical surface curve equation is expressed as in the form of the first embodiment. Further, the parameters of each relation are as explained in the first embodiment, but the values of each relation are as listed in the following table, wherein HFOVinf, HFOVmacro are maximum half view values of object distance infinity/object distance 500mm, respectively.

Ninth embodiment

The image capturing device of the ninth embodiment of the present invention and the eighth embodiment use the same optical system, and the schematic diagram of the image capturing device at infinite object distance refers to fig. 9A, and the aberration curve refers to fig. 9B. The image capturing device of the eighth embodiment of the present invention includes an image capturing optical lens assembly (not numbered) and an electronic photosensitive element 995, wherein the image capturing optical lens assembly, in order from an object side to an image side of an optical path, includes an aperture stop 900, a first lens element 910, a second lens element 920, a third lens element 930, a first stop 901, a fourth lens element 940, a fifth lens element 950, a sixth lens element 960, a seventh lens element 970, an eighth lens element 980, a ninth lens element 990, a second stop 902, a filter element 993, and an image plane 994, and the first lens element 910, the second lens element 920, the third lens element 930, the fourth lens element 940, the fifth lens element 950, the sixth lens element 960, the seventh lens element 970, the eighth lens element 980, and the ninth lens element 990 have an air gap on an optical axis. The sixth lens 960 and the seventh lens 970 have a variable mirror pitch I on the optical axis, and may be implemented by the driving device of fig. 11A or 11B as necessary.

The detailed optical data of the ninth embodiment is shown in table seventeen, and the aspheric data thereof is shown in table eighteen.

The ninth embodiment aspherical surface curve equation is expressed as in the form of the first embodiment. Further, the parameters of each relation are as explained in the first embodiment, but the values of each relation are as listed in the following table, wherein HFOVinf, HFOVmacro are maximum half view values of object distance infinity/object distance 500mm, respectively.

Tenth embodiment

Fig. 14 is a perspective view illustrating an image capturing device 10a according to a tenth embodiment of the invention. As shown in fig. 14, the image capturing device 10a is a camera module in this embodiment. The image capturing device 10a includes an image capturing optical lens set 11a, a driving device 12a and an electronic sensor 13a, wherein the image capturing optical lens set 11a includes the image capturing optical lens set according to the first embodiment of the present invention and a lens barrel (not labeled). The image capturing device 10a collects light by the image capturing optical lens assembly 11a to generate an image, performs image focusing by cooperating with the driving device 12a, and finally forms an image on the electronic photosensitive element 13a (i.e., the electronic photosensitive element 195 of the first embodiment) and outputs image data.

The driving device 12a may be an Auto-Focus (Auto-Focus) module, and the driving method thereof may use a driving system such as a Voice Coil Motor (VCM), a Micro Electro-Mechanical system (MEMS), a Piezoelectric system (piezo-electric), and a Memory metal (Shape Memory Alloy). The driving device 12a can make the optical lens set 11a for image pickup obtain a better image position, and can provide a clear image for the object under the condition of different object distances. The driving device 12a may include a first driving device, a second driving device and a third driving device (not shown), and each of the driving devices is configured as shown in fig. 11A, 11B, 13A and 13B, so as to provide the variation of the variable mirror pitch on the optical axis in the optical lens assembly 11A for image capturing, so as to provide the image capturing function with infinite object distance and micro distance.

The image capturing device 10a can be equipped with an electronic photosensitive device 13a (such as CMOS, CCD) with good sensitivity and low noise, and is disposed on the image plane of the image capturing optical lens assembly, so as to truly present the good image quality of the image capturing optical lens assembly.

In addition, the image capturing device 10a further includes an image stabilizing module 14a, which may be a kinetic energy sensing device such as an accelerometer, a gyroscope or a Hall Effect Sensor, and in the tenth embodiment, the image stabilizing module 14a is a gyroscope, but not limited thereto. The Image quality of dynamic and low-illumination scene shooting is further improved by adjusting the change of different axial directions of the Optical lens group for shooting to compensate the fuzzy Image generated by shaking at the shooting moment, and advanced Image compensation functions such as Optical Image Stabilization (OIS) and Electronic Image Stabilization (EIS) are provided.

The image capturing device 10a of the present invention is not limited to be applied to a smart phone. The image capturing device 10a can be applied to a mobile focusing system according to the requirement, and has the features of excellent aberration correction and good imaging quality. For example, the image capturing device 10a can be applied to electronic devices such as an automotive electronic device, an unmanned aerial vehicle, an intelligent electronic product, a tablet computer, a wearable device, a medical apparatus, a precision instrument, a surveillance camera, a portable image recorder, an identification system, a multi-lens device, a motion sensing device, a virtual reality, a sports device, and a home intelligent auxiliary system.

Eleventh embodiment

Referring to fig. 15A to 15B, fig. 15A is a front view of an electronic device 1500 according to an eleventh embodiment of the invention, and fig. 15B is a rear view of the electronic device 1500 of fig. 15A. In this embodiment, the electronic device 1500 is a smart phone. The front surface of the electronic device includes a display device 1510 and an image capturing device 1520, wherein the image capturing device 1520 can be implemented by any one of the image capturing devices of the first embodiment to the ninth embodiment of the invention and is configured with a non-circular opening.

As shown in fig. 15B, the back of the electronic device 1500 includes an image capturing device 1530, an image capturing device 1540, and an image capturing device 1550. The image capturing device 1530 is a telephoto lens, the image capturing device 1540 is a wide-angle lens, and the image capturing device 1550 is a super-wide-angle lens. The difference between the viewing angles of the image capturing device 1530, the image capturing device 1540, and the image capturing device 1550 is at least 30 degrees.

Twelfth embodiment

Referring to fig. 16A to 16B, fig. 16A is a front view of an electronic device 1600 according to a twelfth embodiment of the disclosure, and fig. 16B is a rear view of the electronic device 1600 of fig. 16A. In this embodiment, the electronic device 1600 is a smart phone. As shown in fig. 16A, the front of the electronic device 1600 includes a display 1610, a TOF (Time of Flight) module 1601, an image capturing device 1602 and an image capturing device 1603. The image capturing devices 1602 and 1603 are disposed above the display device 1610, face the same direction, and are horizontally arranged on the upper edge of the electronic device 1600. The image capturing device 1602 is an ultra-wide-angle image capturing device, and the image capturing device 1603 is a wide-angle image capturing device. The viewing angle of the image capturing device 1602 is at least 30 degrees greater than the viewing angle of the image capturing device 1603.

As shown in fig. 16B, the back of the electronic device 1600 includes a TOF (Time of Flight ranging) module 1607, a flash module 1608, an image capturing device 1604a, an image capturing device 1604B, an image capturing device 1605a, an image capturing device 1605B, an image capturing device 1606a, an image capturing device 1606B, an image capturing device 1609a, and an image capturing device 1609B. The image capturing device 1604a, the image capturing device 1604b, the image capturing device 1605a, the image capturing device 1605b, the image capturing device 1606a, the image capturing device 1606b, the image capturing device 1609a and the image capturing device 1609b face the same direction and are vertically arranged in two rows on the back of the electronic device 1600. A TOF (Time of Flight) module 1607 and a flash module 1608 are disposed on the upper edge of the back of the electronic device 1600. The image capturing devices 1604a and 1604b are wide-angle image capturing devices, and use the optical lens assembly for image capturing of the first embodiment of the present invention; the image capturing devices 1605a, 1605b are super wide-angle image capturing devices, and the image capturing devices 1606a, 1606b are telescopic image capturing devices; the image capturing devices 1609a, 1609b are telescopic image capturing devices, and have non-circular openings and configurations including optical path turning elements. The viewing angles of the image capturing devices 1605a, 1605b are at least 30 degrees greater than the viewing angles of the image capturing devices 1604a, 1604b, and the viewing angles of the image capturing devices 1604a, 1604b are at least 30 degrees greater than the viewing angles of the image capturing devices 1606a, 1606b, 1609a, 1609 b.

The electronic device disclosed in the foregoing is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the image capturing device of the present invention. Preferably, the electronic device may further include a control unit, a display unit, a storage unit, a temporary storage unit (RAM), or a combination thereof.

The above tables show tables of variation of values of the imaging optical lens assembly according to the embodiments of the present disclosure, but the variation of values of the embodiments of the present disclosure is obtained experimentally, and products with the same structure should still fall within the scope of the present disclosure even though different values are used, so that the descriptions and drawings described above are only for illustration and are not intended to limit the scope of the present disclosure.

Claims (29)

1. An image capturing device is characterized by comprising an optical lens group for shooting and an electronic photosensitive element;

the optical lens group for shooting comprises a plurality of lenses, wherein the plurality of lenses sequentially comprise a first lens, a second lens and a last lens from an object side to an image side, each lens in the plurality of lenses comprises an object side surface facing to the object side and an image side surface facing to the image side, and the electronic photosensitive element is arranged at the image side of the last lens;

in the multi-lens, at least one lens is plastic, and at least one lens comprises at least one inflection point;

the multi-lens comprises at least one variable lens interval, wherein the variable lens interval is an optical axis distance which can be changed between two adjacent lenses in the multi-lens;

when the object distance is infinity, the optical axis distance between the object side surface of the first lens and the electronic photosensitive element is TLinf, and the focal length of the optical lens set for shooting is finf; the minimum one of the Abbe numbers of the lenses of the optical lens group for shooting is Vdmin; when the object distance is infinity, the optical axis distance of the at least one variable mirror distance is ATinf; when the object distance is 500mm, the optical axis distance of the at least one variable mirror distance is ATmacro, and the optical axis distance between the object side surface of the first lens and the electronic photosensitive element is TLmacro; which satisfies the following relation:

0.60<TLinf/finf<2.50；

10.0< Vdmin < 28.0; and

0.05<|(ATinf-ATmacro)/(TLinf-TLmacro)|<0.80。

2. the image capturing device as claimed in claim 1, wherein the first lens element has positive refractive power, the second lens element has negative refractive power, and the maximum refractive index of the image capturing optical lens assembly is Nmax, which satisfies the following relationship:

1.665<Nmax<1.780。

3. the image capturing device as claimed in claim 1, wherein when the object distance is infinity, the focal length of the image capturing optical lens assembly is finf, the entrance pupil aperture of the image capturing optical lens assembly is EPDinf, which satisfies the following relation:

1.20<finf/EPDinf<2.0。

4. the image capturing apparatus as claimed in claim 1, wherein the minimum abbe number of the image capturing optical lens assembly is Vdmin, which satisfies the following relationship:

12.0<Vdmin<20.0。

5. the image capturing apparatus as claimed in claim 1, wherein when the object distance is infinity, the optical axis distance of the at least one variable mirror distance is ATinf; when the object distance is 500mm, the optical axis distance of the at least one variable mirror distance is ATmacro; the minimum central thickness of the lens on the optical axis of the optical lens group for shooting is CTmin, which satisfies the following relational expression:

0.01<|(ATinf-ATmacro)|/CTmin<0.50。

6. the image capturing device as claimed in claim 1, wherein when the object distance is infinity, half of the maximum field of view of the image capturing optical lens assembly is HFOVinf; when the object distance is 500mm, half of the maximum viewing angle in the optical lens group for image pickup is HFOVmacro, which satisfies the following relation:

35.0 degrees < HFOVinf <65.0 degrees;

35.0 degrees < HFOVmacro <65.0 degrees.

7. The image capturing apparatus as claimed in claim 1, wherein the image capturing optical lens assembly includes an aperture stop, wherein when the object distance is infinity, the optical axis distance between the aperture stop and the electro-optic device is SLinf, and the optical axis distance between the object-side surface of the first lens element and the electro-optic device is TLinf, which satisfy the following relations:

0.70<SLinf/TLinf<1.0。

8. the image capturing apparatus as claimed in claim 1, wherein the sum of the thicknesses of the lenses along the optical axis is Σ CT; when the object distance is infinity, the optical axis distance between the object side surface of the first lens and the electronic photosensitive element is TLinf; the maximum image height of the optical lens group for shooting is ImgH, and the maximum image height satisfies the following relational expression:

0.48< Σ CT/TLinf < 0.80; and

5.20mm<ImgH<10.0mm。

9. the image capturing apparatus as claimed in claim 1, wherein when the object distance is infinity, the optical axis distance between the object-side surface of the first lens element and the electro-photosensitive element is TLinf; the maximum image height of the optical lens group for shooting is ImgH, and the maximum image height satisfies the following relational expression:

1.0<TLinf/ImgH<1.80。

10. the image capturing apparatus as claimed in claim 1, wherein when the object distance is infinity, the optical axis distance of the at least one variable mirror distance is ATinf; when the object distance is 500mm, the optical axis distance of the at least one variable mirror distance is ATmacro; when the object distance is infinity, the distance between the image side surface of the last lens and the optical axis of the electronic photosensitive element is BLinf; when the object distance is 500mm, the distance between the image side surface of the last lens and the optical axis of the electronic photosensitive element is BLmacro; the maximum image height of the optical lens group for shooting is ImgH; when the object distance is infinity, the focal length of the image pickup optical lens group is finf, and the following relation is satisfied:

0.07< | (ATinf-ATmacroco)/(BLinf-BLmacroco) | < 0.90; and

0.72<ImgH/finf<1.80。

11. the image capturing apparatus as claimed in claim 1, wherein the last lens element is a negative lens element; the maximum image height of the optical lens group for shooting is ImgH; when the object distance is infinity, the distance between the image side surface of the last lens and the optical axis of the electronic photosensitive element is BLinf, which satisfies the following relation:

3.70<ImgH/BLinf<10.0。

12. the image capturing apparatus as claimed in claim 1, wherein the image capturing apparatus comprises a first driving device and a second driving device; the image side of the final lens is concave at the paraxial region and includes a convex pole at the off-axis region.

13. The image capturing device as claimed in claim 1, wherein the abbe number of the lens of the image capturing optical lens assembly is V, and at least two lenses of the image capturing optical lens assembly satisfy V < 20.0.

14. The image capturing apparatus of claim 1, wherein the image capturing optical lens assembly includes only one variable lens pitch.

15. The image capturing apparatus as claimed in claim 1, wherein the image capturing optical lens assembly includes at least seven lens elements, the at least seven lens elements include a sixth lens element, and the variable lens spacing is located on the image side of the sixth lens element.

16. An image capturing device is characterized by comprising an optical lens group for shooting, an electronic photosensitive element, a first driving device and a second driving device;

the optical lens group for shooting comprises a plurality of lenses, wherein the plurality of lenses sequentially comprise a first lens, a second lens and a last lens from an object side to an image side, each lens in the plurality of lenses comprises an object side surface facing to the object side and an image side surface facing to the image side, and the electronic photosensitive element is configured at the image side of the last lens;

in the multi-lens, at least one lens is plastic, and at least one lens comprises at least one inflection point;

the multiple lenses comprise at least one variable lens interval, and the variable lens interval between two adjacent lenses changes the optical axis distance between the two adjacent lenses through the second driving device;

the optical lens group for shooting comprises an object distance between a shot object and the object side surface of the first lens, and when the object distance is infinite, the optical axis distance between the object side surface of the first lens and the electronic photosensitive element is TLinf; when the object distance is infinity, the focal length of the optical lens group for shooting is finf; the minimum of the Abbe numbers of the lenses of the optical lens group for shooting is Vdmin, which satisfies the following relational expression:

0.60< TLinf/finf < 2.50; and

10.0<Vdmin<21.0。

17. the image capturing device as claimed in claim 16, wherein the first lens element has positive refractive power and the last lens element is a negative lens element.

18. The image capturing apparatus as claimed in claim 16, wherein the image capturing optical lens assembly includes an aperture stop, and the plurality of lenses is seven to ten lenses; when the object distance is infinity, the optical axis distance between the aperture and the electronic photosensitive element is SLinf; when the object distance is infinity, the optical axis distance between the object side surface of the first lens and the electronic photosensitive element is TLinf, which satisfies the following relation:

0.70<SLinf/TLinf<1.0。

19. the image capturing apparatus of claim 16, wherein the image side surface of the last lens element is concave at the paraxial region and includes a convex point at the off-axis region.

20. The image capturing device as claimed in claim 16, wherein the abbe number of the image capturing optical lens assembly is V, and at least two lenses of the image capturing optical lens assembly satisfy V < 20.0.

21. The image capturing device as claimed in claim 16, wherein the maximum effective radius of the object-side surface of the first lens element is Y11, the maximum effective radius of the image-side surface of the last lens element is Ylast, and the maximum image height of the image capturing optical lens assembly is ImgH; when the object distance is infinity, the optical axis distance between the object side surface of the first lens and the electronic photosensitive element is TLinf, which satisfies the following relation:

0.10<Y11/Ylast<0.50；

5.20mm < ImgH <10.0 mm; and

3.0mm<TLinf<15.0mm。

22. the image capturing apparatus as claimed in claim 16, wherein the lens pitch of two adjacent lenses closest to the electro-optic device is the largest among the lens pitches of all the adjacent lenses.

23. The image capturing apparatus as claimed in claim 16, wherein the first driving device is used to correct central image quality, and the second driving device is used to correct peripheral image quality.

24. The image capturing device as claimed in claim 16, wherein the image capturing device comprises an optical anti-shake device.

25. The image capturing apparatus as claimed in claim 16, wherein the first driving device or the second driving device is made of shape memory alloy or piezoelectric material.

26. The image capturing apparatus as claimed in claim 16, wherein the first driving device is activated such that the distance between the lenses is not changed; the pixels of the electronic photosensitive element are more than fifty million.

27. The image capturing apparatus as claimed in claim 16, wherein the second driving device is activated to change the lens spacing between the lenses; when the object distance is infinity, the optical axis distance of the at least one variable mirror distance is ATinf; when the object distance is 500mm, the optical axis distance of the at least one variable mirror distance is ATmacro; which satisfies the following relation:

0.07mm<|(ATinf-ATmacro)|*10<1.0mm。

28. the image capturing apparatus as claimed in claim 16, wherein the first driving device is activated to displace the second driving device.

29. An electronic device comprising at least two image capturing devices located on the same side of the electronic device, wherein the at least two image capturing devices comprise:

a first image capturing device comprising the image capturing device as claimed in claim 16; and

a second image capturing device including an optical lens assembly and an electronic photosensitive element;

wherein, the difference between the visual angle of the first image capturing device and the visual angle of the second image capturing device is at least 30 degrees.

Images